{
 "ocl_version": "0.1.0",
 "name": "Opelo Road",
 "slug": "opelo-road",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 37.49015448507862,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 235.0,
   "end_distance_m": 237.0,
   "start_elevation_m": 819.4704117935,
   "end_elevation_m": 820.2202148832016,
   "min_gradient_pct": -7.528779338963432
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 32.42951449004371,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 234.0,
   "end_distance_m": 237.0,
   "start_elevation_m": 819.2473294485003,
   "end_elevation_m": 820.2202148832016,
   "min_gradient_pct": -4.488095389024238
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.475960951662273,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 233.0,
   "end_distance_m": 238.0,
   "start_elevation_m": 819.0848176194929,
   "end_elevation_m": 820.358615667076,
   "min_gradient_pct": -2.7704325423451337
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.474290605785654,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 432.0,
   "end_distance_m": 442.0,
   "start_elevation_m": 843.7558294342267,
   "end_elevation_m": 845.8032584948053,
   "min_gradient_pct": -1.3693781812071393
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.198065969251502,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 432.0,
   "end_distance_m": 452.0,
   "start_elevation_m": 843.7558294342267,
   "end_elevation_m": 847.795442628077,
   "min_gradient_pct": -0.4223441478706036
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.05276647980736,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 433.0,
   "end_distance_m": 458.0,
   "start_elevation_m": 843.9688212863402,
   "end_elevation_m": 848.9820129062921,
   "min_gradient_pct": -0.06566126663801697
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.85539292878775,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 432.0,
   "end_distance_m": 482.0,
   "start_elevation_m": 843.7558294342267,
   "end_elevation_m": 853.6835258986206,
   "min_gradient_pct": 0.6330342292319528
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.27110109650789,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 423.0,
   "end_distance_m": 523.0,
   "start_elevation_m": 842.0544875945168,
   "end_elevation_m": 861.3255886910247,
   "min_gradient_pct": 1.1991563017445515
  }
 ],
 "shape": {
  "ascent_concentration": 0.43,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 162.0,
  "shape_class": "sustained"
 },
 "length_m": 550.0850480522754,
 "start_elevation_m": 806.157010841307,
 "end_elevation_m": 866.3027818359303,
 "endpoint_gain_m": 60.14577099462326,
 "overall_gradient_pct": 10.933903985862841,
 "accumulated_ascent_m": 60.862251614859815,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.475960951662273,
   "start_distance_m": 233.0,
   "end_distance_m": 238.0,
   "midpoint_distance_m": 235.5,
   "start_elevation_m": 819.0848176194929,
   "end_elevation_m": 820.358615667076,
   "start_xy": [
    220013.86547759466,
    2216449.6331259534
   ],
   "end_xy": [
    220014.592444544,
    2216454.579995575
   ]
  },
  "max_10m": {
   "gradient_pct": 20.474290605785654,
   "start_distance_m": 432.0,
   "end_distance_m": 442.0,
   "midpoint_distance_m": 437.0,
   "start_elevation_m": 843.7558294342267,
   "end_elevation_m": 845.8032584948053,
   "start_xy": [
    220045.51272838606,
    2216646.085660194
   ],
   "end_xy": [
    220047.20873240556,
    2216655.9407893345
   ]
  },
  "max_20m": {
   "gradient_pct": 20.198065969251502,
   "start_distance_m": 432.0,
   "end_distance_m": 452.0,
   "midpoint_distance_m": 442.0,
   "start_elevation_m": 843.7558294342267,
   "end_elevation_m": 847.795442628077,
   "start_xy": [
    220045.51272838606,
    2216646.085660194
   ],
   "end_xy": [
    220048.90473642506,
    2216665.7959184744
   ]
  },
  "max_25m": {
   "gradient_pct": 20.05276647980736,
   "start_distance_m": 433.0,
   "end_distance_m": 458.0,
   "midpoint_distance_m": 445.5,
   "start_elevation_m": 843.9688212863402,
   "end_elevation_m": 848.9820129062921,
   "start_xy": [
    220045.682328788,
    2216647.071173108
   ],
   "end_xy": [
    220049.92233883674,
    2216671.7089959583
   ]
  },
  "max_50m": {
   "gradient_pct": 19.85539292878775,
   "start_distance_m": 432.0,
   "end_distance_m": 482.0,
   "midpoint_distance_m": 457.0,
   "start_elevation_m": 843.7558294342267,
   "end_elevation_m": 853.6835258986206,
   "start_xy": [
    220045.51272838606,
    2216646.085660194
   ],
   "end_xy": [
    220053.99274848355,
    2216695.3613058943
   ]
  },
  "max_100m": {
   "gradient_pct": 19.27110109650789,
   "start_distance_m": 423.0,
   "end_distance_m": 523.0,
   "midpoint_distance_m": 473.0,
   "start_elevation_m": 842.0544875945168,
   "end_elevation_m": 861.3255886910247,
   "start_xy": [
    220043.9863247685,
    2216637.216043968
   ],
   "end_xy": [
    220060.9463649635,
    2216735.7673353683
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -2.7704325423451337,
   "start_distance_m": 2.0,
   "end_distance_m": 7.0,
   "midpoint_distance_m": 4.5,
   "start_elevation_m": 806.1012682147855,
   "end_elevation_m": 805.9627465876682,
   "start_xy": [
    219981.9867676827,
    2216220.8579097046
   ],
   "end_xy": [
    219982.69368688946,
    2216225.8076839657
   ]
  },
  "min_10m": {
   "gradient_pct": -1.3693781812071393,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 806.157010841307,
   "end_elevation_m": 806.0200730231863,
   "start_xy": [
    219981.704,
    2216218.878
   ],
   "end_xy": [
    219983.1178384135,
    2216228.777548522
   ]
  },
  "min_20m": {
   "gradient_pct": -0.4223441478706036,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 806.157010841307,
   "end_elevation_m": 806.0725420117329,
   "start_xy": [
    219981.704,
    2216218.878
   ],
   "end_xy": [
    219984.53167682703,
    2216238.677097044
   ]
  },
  "min_25m": {
   "gradient_pct": -0.06566126663801697,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 806.157010841307,
   "end_elevation_m": 806.1405955246476,
   "start_xy": [
    219981.704,
    2216218.878
   ],
   "end_xy": [
    219985.23859603377,
    2216243.626871305
   ]
  },
  "min_50m": {
   "gradient_pct": 0.6330342292319528,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 806.157010841307,
   "end_elevation_m": 806.473527955923,
   "start_xy": [
    219981.704,
    2216218.878
   ],
   "end_xy": [
    219988.74474340226,
    2216268.3797849044
   ]
  },
  "min_100m": {
   "gradient_pct": 1.1991563017445515,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 806.157010841307,
   "end_elevation_m": 807.3561671430516,
   "start_xy": [
    219981.704,
    2216218.878
   ],
   "end_xy": [
    219995.74332608882,
    2216317.887560459
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 37.49015448507862,
   "start_distance_m": 235.0,
   "end_distance_m": 237.0,
   "midpoint_distance_m": 236.0,
   "start_elevation_m": 819.4704117935,
   "end_elevation_m": 820.2202148832016,
   "start_xy": [
    220014.1562643744,
    2216451.6118738023
   ],
   "end_xy": [
    220014.44705115413,
    2216453.5906216507
   ]
  },
  "max_3m": {
   "gradient_pct": 32.42951449004371,
   "start_distance_m": 234.0,
   "end_distance_m": 237.0,
   "midpoint_distance_m": 235.5,
   "start_elevation_m": 819.2473294485003,
   "end_elevation_m": 820.2202148832016,
   "start_xy": [
    220014.01087098452,
    2216450.6224998776
   ],
   "end_xy": [
    220014.44705115413,
    2216453.5906216507
   ]
  }
 },
 "diagnostic_note": "Windows <=3 m are at raster-noise scale (1-sigma raster noise alone is roughly +/-7 pp at 2 m and +/-5 pp at 3 m on a 1 m DTM). Diagnostic use only: never a headline or ranking value.",
 "quality_summary": {
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "sample_interval_m": 1.0,
  "interpolation": "bilinear",
  "smoothing": "none",
  "gradient_windows_m": [
   5.0,
   10.0,
   20.0,
   25.0,
   50.0,
   100.0
  ],
  "diagnostic_windows_m": [
   2.0,
   3.0
  ],
  "elevation_crs": "EPSG:26905",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/hi-east/USGS_1M_5_x21y222_HI_Hawaii_Island_Lidar_NOAA_2017_B17.tif",
   "data/cache/usa/hi-east/USGS_1M_5_x22y222_HI_Hawaii_Island_Lidar_NOAA_2017_B17.tif"
  ],
  "calculated_at": "2026-09-08T04:15:18+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/hawaii-2026-09-08-batch-band1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "hi-run5-260908",
  "elevation_provider": "USGS 3DEP (The National Map)",
  "elevation_licence": "Public domain \u2014 USGS 3DEP 1 m DEM, courtesy of the U.S. Geological Survey",
  "elevation_dataset": "USGS 3DEP 1 m DEM, HI_Hawaii_Island_Lidar_NOAA_2017_B17 (collected 2017)",
  "elevation_tile_ids": [
   "x21y222",
   "x22y222"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "South Kohala",
  "county": "Hawaii"
 }
}